Unfortunately, the KS5 Retention measure, as detailed from page 58 onwards in the DfE's Technical Guide, is not currently available in Sisra Analytics' KS5 reports.
Help shape Sisra Analytics
There is currently no timeframe for when Retention measures will become available in KS5 reports; however, if this is something you would like to be included in the future, please feel free to take a look at our Juniper Ideas Portal linked below, in which Sisra users can add or vote upon any requested features